Okinawa Prefecture

Semaruhakogame (box turtle)

Semaruhakogame is a rare tortoise, and only inhabits in Iriomote Island, Ishigaki Island, and Taiwan. The total length is 20cm, the shell of the belly is divided in the middle into two and connected like a hinge. When attacked by the enemy, its hands and feet will be retracted and covered by shell. For this reason, it is called “Hakogame”. It is nocturnal, and hunts...

Sakishima Kinobori Lizard

Sakishima kinobori lizard inhabits Iriomote Island and is the only lizard in Japan, which belongs to the Agama family. It is also a subspecies of Ryukyu kinobori lizard. The length of the body is 180mm, and the length of trunk from the head of a male is approximately 60mm to 68mm, and a female is 55mm to 65mm. Although basically the bodily color is green, it can be...

The gregarious of Sakishima-suonoki at Komi

Sakisima-suonoki is widely distributed over the subtropical area from the tropical zone, and grows in the boundary line and swamp of mangrove forests and land. There are many Sakishima-suonoki at Sanriutaki in Komi of Iriomote Island. The height of the tree is 10m to 15m, and diameter is 40cm to 100cm. The roots of this tree seem a board, and are crawling on the...

Urauchi (Urachi) River

Urauchi River (Urachi River) that is flowing from the northwestern part of the Iriomote Island is the longest and biggest river in Okinawa with the total length of 39km, and the size of the catchments area is 28.41square meters, and it has 11 branches. Urauchi-bridge is constructed over 1.6km upstream from the mouth of the river, and a sight seeing boat has...

Nakama river nature conservation district

Nakama river is in the eastern part of the Iriomote Island, and is second longest river of the Iriomote island, total length is 17.5km. There are vast mangrove forests continued about 5km downstream from near the mouth of the river, and rare living thing are found there, such as Mud crabs, Shirenashijimi, and Barred mud skippers. Nakama-big-bridge is located near...

The mangrove jungle of Shiira-gawa

The mangrove jungle of Shiira-gawa is grown in colonies downstream of Nakama River, which is one of the two big-rivers in the Iriomote Island. A subtropical jungle can be enjoyed riding on a sightseeing boat for 50 minutes. It is also possible to tour by canoe to the middle of a river, the beautiful scenery can be enjoyed. The voice of the animal of this subtropical...

Unarizaki Observatory

Unarizaki is located on north of Iriomote Island, and also Hoshinohama (the stellar sand beach) and Tsukigahama (shape of the beach is drawn arc like the moon) are also around here. Unari means a woman, and it has been called the holy place on Iriomote Island, which was a goddess being. Iriomote wildcat inhabits this cape in the primeval forest of laurel trees,...

Hoshidate Natural conservation district

Hoshidate natural conservation district is located on end of northwest of Iriomote Island, and Area is 24ha. It is covered by big mangrove forests, which reach to the estuary of Urauchi River from the backside of Hoshidate Community. Ohirugi and Mehirugi and Yaeyama Hirugi has growing, many small animals, which eat these leaves, such as crabs and shellfish. Large-...

The colony of Yaeyama hamago

Yaeyama-hamago belongs to the verbena family it mainly grows naturally in Malaysia, Polynesia, Micronesia, East Africa, it is a low tree, 3-5 m high. Hamago of Okinawa is growing in colonies in the woods near the Funauki seashore. Usually the number of sheets of a leaf is two pieces, but Yaeyama-hamago has 5 pieces, there is the main difference point, in comparing...

Hiranishi kaizuka (Hiranishi shell mound)

Hiranishi shell mound is in Hiranishi-jima Island located at 500m northeast of the Komi colony on Iriomote-jima Island, and size of the island's circumference is about 600m, and an altitude of 15.6m. At the time of ebb tide, you can walk across. Excavation investigation was conducted in 1958 there was collected pottery made from shell product and earthenware...

Nakama daini kaizuka (Nakama second shell mound)

Nakama's second shell mound is located north about 100m from Nakama's first shell mound, and is formed on high land from above sea level of 5m to 6m. Although the first shell mound is a sand hill field, the second shell mound is formed from the red clay, which is the weathering ground of limestone. The farm road went to the inside of a shell mound to north and south...

Nakama daiichi kaizuka (Nakama first shell mound)

Nakama daiichi kaizuka is located near the estuary north side of Nakama River, and is formed in the sand hills above sea level at 4m. When excavation investigation was conducted in 1958, these have been discovered many stone implements, such as the stone of an ax, and the stone for polishing another. However, one fragment of the earthenware was not found, either. It...

Sashiba

Sashiba belongs to washitaka-ka. When autumn comes, the large herd of Sashiba will go down along the Ryukyu Islands to pass winter, from Honshu (main land of Japan) to Southeast Asia. The forest of Iriomote-jima will be used for the rest place at the time.A male Sashiba's length is 47 cm, the color of the body surface is brown, there is a white lateral pattern at...

Hazenoki (A kind of Japanese lacquer tree)

Hazenoki is deciduous tree of the Japanese lacquer family. Full length is from 7 to 10m, and the diameter is 40cm. It is called “Ryukyu Haze” or “Haze” generally, the temple and the park often plant this tree and autumnal leaves are famous also as a beautiful appreciation tree. The work, which squeezes out wax from a wooden fruit to make candles started in the...

Iriomote National Park

Iriomote National Park faces the line, which connects Nakama river valley, and Urauchi river valley, and Mizadake, and the islands also include Taketomi-jima island. A mainstream river is flowing to the hinterland meandering deeply with abundant water. Moreover, the coral reef spreads out on the outskirts of Islands in Taketomijima Island or kohamajima Island, and...